How to shift surface?

[Göran Hasse <gorhas raditex nu>]

Hello!

I am trying to write a gtk + Cairo application that mimics the animation in 
wikipedias sine graph.

https://en.wikipedia.org/wiki/File:Circle_cos_sin.gif

I want to draw a point and then shift the surface to the left, and then draw a new point,
and shift again. I have done this with pixmaps, but I cant figure it out with Cairo.

Is offset the way to go?

cairo_surface_set_device_offset (surface, offset_x, offset_y);

/gh

-- 
Göran Hasse
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